triggers

TD2/ecommerce_1.sql

@@ -132,3 +132,22 @@ FROM
 GROUP BY
     la_date
 ;
+
+---trigger 7
+
+DELIMITER //
+CREATE TRIGGER before_insert_commandes_lignes
+    BEFORE INSERT
+    ON commandes_lignes FOR EACH ROW
+BEGIN
+    SET NEW.commande_ligne_prix_total = NEW.commande_ligne_quantite * NEW.commande_ligne_prix_unitaire;
+END //
+DELIMITER ;
+DELIMITER //
+CREATE TRIGGER before_update_commandes_lignes
+    BEFORE UPDATE
+    ON commandes_lignes FOR EACH ROW
+BEGIN
+    SET NEW.commande_ligne_prix_total = NEW.commande_ligne_quantite * NEW.commande_ligne_prix_unitaire;
+END //
+DELIMITER ;

TD2/ecommerce_2.sql

@@ -85,3 +85,47 @@ LIMIT
 ;
 
 
+--trigger 2
+
+DELIMITER //
+CREATE TRIGGER define_gategory
+BEFORE INSERT
+ON commandes FOR EACH ROW
+BEGIN
+    SET NEW.categorie_id =
+    CASE
+        WHEN
+            NEW.commande_cache_prix_total < 200
+        THEN 1
+        WHEN
+            NEW.commande_cache_prix_total BETWEEN 200 AND 500
+        THEN 2
+        WHEN
+            NEW.commande_cache_prix_total BETWEEN 500 AND 1000
+        THEN 3
+        ELSE 4
+    END;
+END //
+DELIMITER ;
+
+
+DELIMITER //
+CREATE TRIGGER define_gategory_update
+BEFORE UPDATE
+ON commandes FOR EACH ROW
+BEGIN
+    SET NEW.categorie_id =
+    CASE
+        WHEN
+            NEW.commande_cache_prix_total < 200
+        THEN 1
+        WHEN
+            NEW.commande_cache_prix_total BETWEEN 200 AND 500
+        THEN 2
+        WHEN
+            NEW.commande_cache_prix_total BETWEEN 500 AND 1000
+        THEN 3
+        ELSE 4
+    END;
+END //
+DELIMITER ;

TD2/geographie.sql

@@ -159,3 +159,28 @@ LIKE
 ORDER BY
     V.ville_nom ASC
 ;
+
+--Procedure 
+
+DELIMITER //
+CREATE PROCEDURE replace_all_dashes_by_spaces_for_villes_saint ()
+BEGIN
+    UPDATE villes V
+    SET V.ville_nom = REPLACE(V.ville_nom, '-', ' ')
+    WHERE
+        V.ville_nom
+    LIKE
+        'SAINT-%'
+    ;
+END //
+DELIMITER ;
+
+--Trigger
+CREATE TRIGGER trigger_name
+{BEFORE | AFTER} {INSERT | UPDATE| DELETE }
+ON table_name FOR EACH ROW
+trigger_body;
+
+
+
+